Chaff remover



April 21, 1925.

1,535,018 B. M. ELY

CHAFF REMOVER Filed July 24. 1924 Patented Apr. 21, 1925.

UNITED STATES PATENT OFFICE nnnivnnnrr. ELY, or'MARsHALL, MICHIGAN, ASSIGNOR 'r'o LAMBERT MACHINE eonr ANY, or MARSHALL, MICHIGAN, A CORPORATION onmcmenn.

GHAFF REMOVER.

Application filed July 24', 1924: Serial No; 728,015.

To allf whom it! may comer nu. e

Bet known that I, BERNARD M. ELY, a

citizen of the United States, residing at Marsha-ll; in thecounty of Calhoun and Stateot. Michiganahaveinvented a new and- 1 bodied in a device especially adapted for grinding; Although theinvention is shown: as embodied in a device-for removing the use in a coffee grindingmachine for remov- 1I1gth8' chaff or, silver skln from roasted cofiee berries which have been previously broken up mto a suitable size for'cuttmg or chaii or silver skin frombrokencoif'ee berries; it is evident that, without detracting from; the spirit of the inventiomthe same be embodiedrina device forseparating or removing chaif; dust or other substances from cereals, or other materials;

The device here shown is especially adapt-- editor forming a part of acoffee" grinding machine which-is more completely shown in a co-pending application. of the complete grindln'g machine, however;

form nopart: of the:present-invention and consequently are not shown in detailinithis CELSE.

In that form of device embodying the features of my invention shown in the ac-- companyingidrawing, the same: issh'own in vertical cross section.

As shown in. thedrawing, 17 indicates the bottom; end of a flattened funnel-shaped member which serves'to conduct the broken coffee: berries" from the breakers (not shown) to the chaff: remover.

The chaif remover comprises a casing formed of an upper upright conical part icalmaterial dispersing plate 52-havingits.v surfaceparallel withthe conical surface of theupper part 500i the casingrand spacedtherefrom a short distance in orderto provide; thespace 52t throughrwhich the broken coflee berries or. other materialfiow. The

apex of the material dispersing plate v 52 is provided with a short vertical rod 53 hav ing a conicalcap 541L011 the endthereof.

The other parts Therodbdwiththe pointed cap 54 project upwardly, into the materialreceiving in let-51.

5'5 indicates-an annular slot or crack: at the center of the casing betweenthe' parts 50 and 50% This slotion crack Zia-constitutes an-Iair inlet, It is-to be'not'edthat. this: air inlet" 55-is arranged adjacentthe lower edge ofthe material dispersingplate 521' andslightly below the same; so that; material" falling from" the edge of; the plate 52- falls into the air stream entering the casing? through the crack55. Thesize of the crack v55 maybe adjusted bymoving upwardly-or downwardly the ring or collar 56" which is mounted on the lower edge of the part 50:

57* indicates an: air suctionpipe entering the casing and having an enlarged circular inverted conical mouth 58 l'y-ingbeneath the: material dispersing: plate 52; 59 indicatesa frusto-conical air bailieplate surrounding the periphery of the mouth 58and lying below and adjacent the circular lower edge of the: material dispersing plate 52.-

Mounted on the under side of the material dispersing plate 52 and projectingdownwardly into the enlarged circular mouth 580i theair suction pipe isan inverted conical air 'baflie' plate: 60;

Any suitable means such asa centrifugal} fan indicated in general by 61 is provided for withdrawing air from the air suction pipe 57 Ali-the bottom of the casing: 50, 50 'is pro' vided a discharge opening: 621- which leads to the-Vgrindingburrs; (not shown).--

In'the operation ofthe device, the broken I cofi'ee berries'withthechali" and silver skin. is fed: from the funnel 17 into the opening 51. The material then strikes the material dispersing plate or spreadingdevice-52 which guides-the cofiee, chaff, silver skim or other ingredients evenly and thinly overitsconical surface. From the lower edge of the: plate 52, the material falls until it isstr-uc'lr by the air streamv enteringthrough the slot-55. The air drawn through the falling cha-fi? and co? fee, sucks the 'cha'fl, dust or' other fine sub stances upwardly between the-bafiie plate- 59 and, the: lower edge of the plate 52;. thence downwardly into the: pipe 57, whence it passes-'out'through the exhaust fan. The broken coffee or other ingredients; thus cleaned, fall intothe lower part of the case ing 50 and thence out through the discharge:

opening 62 to the finishing burrs. The direction of the air current is shown by the drawings. a

While I have shown and described certain embodiments of my invention,1it is to be understood that it is capable of many modifications. Changes, therefore, in the construction and arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claims, in which it is my intention to claim all novelty inherent in my invention as broadly as possible in View of the priorart. What I claim as new, and desire to secure by Letters Patent, is:

l. A device of the character described comprising; a casing'having a material receiving inlet; an upright conical material dispersing plate within said casing lying below saidinlet; said casing having an air ini let arranged adjacent to the lower circular edge of said conical material dispersing plate; an air suction pipe entering said casing and having an enlarged mouth lyingbeneath the conical material dispersing plate; a frusto-conical air bafiie plate surrounding themouth of the air suction pipe and lying below and adjacent to the circular lower edge of the material dispersing .plate; and air exhausting means attached to the outer end of the air suction pipe.

' 2. A device of the character described comprising; a casing having a material re-' "and lying below and adjacent to the circular lower edge of thematerial dispersing plate;

and air exhausting means attached to the outer end of the air suction pipe.

3. A device of the character described comprising; a casing having a material rereiving inlet; an upright conical material dispersing plate within said casing lying below said inlet; said casing having an air inlet arranged adjacent to and below the lower circular edge of said conical material dispersing plate; an air suction pipe entering said casing and having an enlarged mouth lying beneath the conlcalmaterial dispersingplate; a. frusto-conical air baffle plate surrounding the mouth of the air suction pipe and lying'below and adjacent to the circular lower edge of the material dispersing plate; and air exhausting means attached to the outer end of the air suction pipe. 7 c

4. A device of the character described comprising; a casing having a material receiving inlet; an upright conical material lying beneath the conical material dispels" ing plate; a trusto-conical air bafile plate surroundin the mouth of the air suction pipe and lying below and adjacent to the circular loweredge of thematerial dispersing plate; and air exhausting means attached to the outer end of the air suction pipe.

5. A device of the character described comprising; a casing having a material receiving inlet; an upright conical material dispersing plate within said casing lying below said inletinlet arranged adjacent to the lower circular edge of said conical material dispersin plate; means for adjusting the size of sai air inlet, said means comprising a movable collar surrounding. said casing; anair suction. pipe entering said casing and having an enlarged mouth lying beneath the conical material dispersing plate; a frusto-conical air baflie plate surrounding the mouth of the air suction pipe and lyingbelow and adjacent to the circular lower edge of the material dispersing plate; and air exhausting means attached to the outer end of the air suction pipe. i

6. A device of the. character described a casing having a material recomprising; ceiving inlet; an upright conical material dispersing plate within said casing lying below said inlet; said casing having an air inlet, arranged adjacent to the lower circular edge of said conical material dispers ing plate; an air suction pipe entering said casing and having an enlarged circular mouth lying beneath the conical material dispersing plate; a i'rusto-conical air baflle plate surrounding the mouth of the air suction pipe and lying below and adjacent to the circular lower edge of the material dissaid casing having an air persing plate; and air exhausting meansattached to the outer end of the air suction pipe.

7. device of the character described comprising; a casing having a material re ceiving inlet; an upright conicalmaterial dispersing plate within said casing lying below said inlet; sald casing having an air inlet arranged ad acent to the lower circular edge of said conical material dispersing plate; an air suction pipe entering said casing and having an enlar ed circular mouth lying beneath the conica materialdispersing plate;'a frusto-conical air baffle plate surrounding the mouth oft-he air suction pipe and lying below and adjacent to the circular lower edge of the material dispersing plate; an inverted conical air battle plate on the under side of the material dispersing plate and projecting downwardly into the enlarged circular mouth of the air suction pipe; and air exhausting means attached to the outer end of the air suction pipe.

8. A device of the character described comprising; a casing having a material receiving inlet; an uprightconical material dispersing plate within said casing lying below said inlet; said casing having an air inlet arranged adjacent to the lower circular edge of said conical material dispersing plate; an air suction pipe entering said casing and having an enlarged circular inverted conical mouth lying beneath the conical material dispersing plate; a frusto-conical air baffle plate surrounding the mouth of the air suction pipe and lying below and adjacent to the circular lower edge of the material dispersing plate; and air exhausting means attached to the outer end of the air suction pipe.

Witness my hand and seal this 21st day of July, A. D. 1924.

BERNARD M. ELY. [1,. 5.] 

